package com.ruoyi.auth.service;

import com.aliyun.dysmsapi20170525.Client;
import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.aliyun.dysmsapi20170525.models.SendSmsResponse;
import com.aliyun.tea.TeaException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.models.RuntimeOptions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import com.ruoyi.common.core.constant.CacheConstants;
import com.ruoyi.common.core.constant.Constants;
import com.ruoyi.common.core.constant.SecurityConstants;
import com.ruoyi.common.core.constant.UserConstants;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.enums.UserStatus;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.core.text.Convert;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.utils.ip.IpUtils;
import com.ruoyi.common.redis.service.RedisService;
import com.ruoyi.common.security.utils.SecurityUtils;
import com.ruoyi.system.api.RemoteUserService;
import com.ruoyi.system.api.domain.SysUser;
import com.ruoyi.system.api.model.LoginUser;

import java.util.Random;
import java.util.concurrent.TimeUnit;

/**
 * 登录校验方法
 * 
 * @author ruoyi
 */
@Component
public class SysLoginService
{
    @Autowired
    private RemoteUserService remoteUserService;

    @Autowired
    private SysPasswordService passwordService;

    @Autowired
    private SysRecordLogService recordLogService;

    @Autowired
    private RedisService redisService;

    /**
     * 登录
     */
    public LoginUser login(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户/密码必须填写");
            throw new ServiceException("用户/密码必须填写");
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户密码不在指定范围");
            throw new ServiceException("用户密码不在指定范围");
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户名不在指定范围");
            throw new ServiceException("用户名不在指定范围");
        }
        // IP黑名单校验
        String blackStr = Convert.toStr(redisService.getCacheObject(CacheConstants.SYS_LOGIN_BLACKIPLIST));
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "很遗憾，访问IP已被列入系统黑名单");
            throw new ServiceException("很遗憾，访问IP已被列入系统黑名单");
        }
        // 查询用户信息
        R<LoginUser> userResult = remoteUserService.getUserInfo(username, SecurityConstants.INNER);

        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "登录用户不存在");
            throw new ServiceException("登录用户：" + username + " 不存在");
        }

        if (R.FAIL == userResult.getCode())
        {
            throw new ServiceException(userResult.getMsg());
        }
        
        LoginUser userInfo = userResult.getData();
        SysUser user = userResult.getData().getSysUser();
        if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }

        //这才是真正的校验密码的过程
        passwordService.validate(user, password);
        recordLogService.recordLogininfor(username, Constants.LOGIN_SUCCESS, "登录成功");
        return userInfo;
    }

    public void logout(String loginName)
    {
        recordLogService.recordLogininfor(loginName, Constants.LOGOUT, "退出成功");
    }

    /**
     * 注册
     */
    public void register(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            throw new ServiceException("用户/密码必须填写");
        }
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            throw new ServiceException("账户长度必须在2到20个字符之间");
        }
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            throw new ServiceException("密码长度必须在5到20个字符之间");
        }

        // 注册用户信息
        SysUser sysUser = new SysUser();
        sysUser.setUserName(username);
        sysUser.setNickName(username);
        sysUser.setPassword(SecurityUtils.encryptPassword(password));
        R<?> registerResult = remoteUserService.registerUserInfo(sysUser, SecurityConstants.INNER);

        if (R.FAIL == registerResult.getCode())
        {
            throw new ServiceException(registerResult.getMsg());
        }
        recordLogService.recordLogininfor(username, Constants.REGISTER, "注册成功");
    }

    @Autowired
    RedisTemplate redisTemplate;


    @Value("${aliyun.sms.accessKeyId}")
    private String accessKeyId;

    @Value("${aliyun.sms.accessKeySecret}")
    private String accessKeySecret;

    @Value("${aliyun.sms.templateCode}")
    private String TemplateCode;

    @Value("${aliyun.sms.signName}")
    private String signName;

    /**
     * 张雅妮
     * 生成验证码+手机号发送验证码 +验证码存redis
     * @param phone
     * @return
     */
    public String GetPhoneCode(String phone){

        // Java 中用于获取当前系统时间 表示当前系统时间的纳秒数
        Long codeL = System.nanoTime();
        //将 long 类型的数字转换成字符串
        String codeStr = Long.toString(codeL);
        //截取
        String verifyCode = codeStr.substring(codeStr.length() - 6);


        //发短信  给accessKeyId,accessKeySec赋值ret
        Config config = new Config()
                .setAccessKeyId(accessKeyId)
                .setAccessKeySecret(accessKeySecret);
        // 访问的域名 设置阿里云短信服务的接入地址的属性
        config.endpoint = "dysmsapi.aliyuncs.com";

        // 创建短信客户端实例
        Client client = null;
        try {
            client = new Client(config);
        } catch (Exception e) {
            e.printStackTrace();
        }

        //阿里云发短信过程
        SendSmsRequest sendSmsRequest = new SendSmsRequest()
                .setSignName(signName)
                .setTemplateCode(TemplateCode)
                .setPhoneNumbers(phone)
                .setTemplateParam("{\"code\":\"" + verifyCode + "\"}");
        RuntimeOptions runtime = new RuntimeOptions();
        try {
            // 打印 API 的返回值
            SendSmsResponse response = client.sendSmsWithOptions(sendSmsRequest, runtime);
            System.out.println(response.getBody());
            //存入redis，设置失效时间
            redisTemplate.opsForValue().set(phone,verifyCode,5, TimeUnit.MINUTES);
            //返回到前端
            return phone+":"+"验证码"+verifyCode+"发送成功！";
        } catch (TeaException error) {
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        } catch (Exception _error) {
            TeaException error = new TeaException(_error.getMessage(), _error);
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        }
        return "发送失败";
    }



    /**
     * 张雅妮
     * 登录 前端传验证码后端校验
     * @param phonenumber
     * @param verifyCode
     * @return
     */
    public LoginUser loginByPhone(String phonenumber, String verifyCode) {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(phonenumber, verifyCode))
        {
            recordLogService.recordLogininfor(phonenumber, Constants.LOGIN_FAIL, "手机号必须填写");
            throw new ServiceException("手机号/密验证码必须填写");
        }

        // 查询用户信息 手机查
        R<LoginUser> userResult = remoteUserService.infos(phonenumber, SecurityConstants.INNER);//内部安全机制相关的请求，以便在服务端进行相应的处理

        //判断是否查找到此用户
        // 用户为空,或者结果里的getUser为空的话就抛异常
        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            recordLogService.recordLogininfor(phonenumber, Constants.LOGIN_FAIL, "登录用户不存在");
            throw new ServiceException("登录用户：" + phonenumber + " 不存在");
        }

        if (R.FAIL == userResult.getCode())
        {
            throw new ServiceException(userResult.getMsg());
        }

        //成功找到此用户
        LoginUser userInfo = userResult.getData();
        SysUser user = userResult.getData().getSysUser();
        if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            recordLogService.recordLogininfor(phonenumber, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
            throw new ServiceException("对不起，您的账号：" + phonenumber + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            recordLogService.recordLogininfor(phonenumber, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
            throw new ServiceException("对不起，您的账号：" + phonenumber + " 已停用");
        }

        //以下是排除了所有情况去校验验证码
        //从redis里拿值
        String code = (String) redisTemplate.opsForValue().get(phonenumber);
        if(!code.equals(verifyCode)){
            recordLogService.recordLogininfor(verifyCode, Constants.LOGIN_FAIL, "对不起，验证码错误");
            throw new ServiceException("对不起，验证码有误" );
        }

        //验证码通过
        recordLogService.recordLogininfor(phonenumber, Constants.LOGIN_SUCCESS, "登录成功");
        return userInfo;
    }

}
